Details
| Original language | English |
|---|---|
| Article number | 2746 |
| Journal | Applied Sciences (Switzerland) |
| Volume | 11 |
| Issue number | 6 |
| Publication status | Published - 18 Mar 2021 |
Abstract
The importance of green technologies is steadily growing. Salt-tolerant plants have been proposed as energy crops for cultivation on saline lands. Halophytes such as Salicornia europaea, Tripolium pannonicum, Crithmum maritimum and Chenopodium quinoa, among many other species, can be cultivated in saline lands, in coastal areas or for treating saline wastewater, and the biomass might be used for biogas production as an integrated process of biorefining. However, halophytes have different salt tolerance mechanisms, including compartmentalization of salt in the vacuole, leading to an increase of sodium in the plant tissues. The sodium content of halophytes may have an adverse effect on the anaerobic digestion process, which needs adjustments to achieve stable and efficient conversion of the halophytes into biogas. This review gives an overview of the specificities of halophytes that needs to be accounted for using their biomass as feedstocks for biogas plants in order to expand renewable energy production. First, the different physiological mechanisms of hal-ophytes to grow under saline conditions are described, which lead to the characteristic composition of the halophyte biomass, which may influence the biogas production. Next, possible mechanisms to avoid negative effects on the anaerobic digestion process are described, with an overview of full-scale applications. Taking all these aspects into account, halophyte plants have a great potential for biogas and methane production with yields similar to those produced by other energy crops and the simultaneous benefit of utilization of saline soils.
Keywords
- Anaerobic digestion, Biogas production, Chenopodium quinoa, Co-digestion, Crithmum maritimum, Halophyte composition, Inoculum adaptation, Plant physiology, Sa-linity, Salicornia europaea, Tripolium pannonicum
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Instrumentation
- Engineering(all)
- General Engineering
- Chemical Engineering(all)
- Process Chemistry and Technology
- Computer Science(all)
- Computer Science Applications
- Chemical Engineering(all)
- Fluid Flow and Transfer Processes
Sustainable Development Goals
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In: Applied Sciences (Switzerland), Vol. 11, No. 6, 2746, 18.03.2021.
Research output: Contribution to journal › Review article › Research › peer review
}
TY - JOUR
T1 - Halophyte Plants and Their Residues as Feedstock for Biogas Production
T2 - Chances and Challenges
AU - Turcios, Ariel E.
AU - Cayenne, Aadila
AU - Uellendahl, Hinrich
AU - Papenbrock, Jutta
N1 - Funding Information: Current collaboration is funded by the EU project Aquacombine (Grant agreement No. 862834.).
PY - 2021/3/18
Y1 - 2021/3/18
N2 - The importance of green technologies is steadily growing. Salt-tolerant plants have been proposed as energy crops for cultivation on saline lands. Halophytes such as Salicornia europaea, Tripolium pannonicum, Crithmum maritimum and Chenopodium quinoa, among many other species, can be cultivated in saline lands, in coastal areas or for treating saline wastewater, and the biomass might be used for biogas production as an integrated process of biorefining. However, halophytes have different salt tolerance mechanisms, including compartmentalization of salt in the vacuole, leading to an increase of sodium in the plant tissues. The sodium content of halophytes may have an adverse effect on the anaerobic digestion process, which needs adjustments to achieve stable and efficient conversion of the halophytes into biogas. This review gives an overview of the specificities of halophytes that needs to be accounted for using their biomass as feedstocks for biogas plants in order to expand renewable energy production. First, the different physiological mechanisms of hal-ophytes to grow under saline conditions are described, which lead to the characteristic composition of the halophyte biomass, which may influence the biogas production. Next, possible mechanisms to avoid negative effects on the anaerobic digestion process are described, with an overview of full-scale applications. Taking all these aspects into account, halophyte plants have a great potential for biogas and methane production with yields similar to those produced by other energy crops and the simultaneous benefit of utilization of saline soils.
AB - The importance of green technologies is steadily growing. Salt-tolerant plants have been proposed as energy crops for cultivation on saline lands. Halophytes such as Salicornia europaea, Tripolium pannonicum, Crithmum maritimum and Chenopodium quinoa, among many other species, can be cultivated in saline lands, in coastal areas or for treating saline wastewater, and the biomass might be used for biogas production as an integrated process of biorefining. However, halophytes have different salt tolerance mechanisms, including compartmentalization of salt in the vacuole, leading to an increase of sodium in the plant tissues. The sodium content of halophytes may have an adverse effect on the anaerobic digestion process, which needs adjustments to achieve stable and efficient conversion of the halophytes into biogas. This review gives an overview of the specificities of halophytes that needs to be accounted for using their biomass as feedstocks for biogas plants in order to expand renewable energy production. First, the different physiological mechanisms of hal-ophytes to grow under saline conditions are described, which lead to the characteristic composition of the halophyte biomass, which may influence the biogas production. Next, possible mechanisms to avoid negative effects on the anaerobic digestion process are described, with an overview of full-scale applications. Taking all these aspects into account, halophyte plants have a great potential for biogas and methane production with yields similar to those produced by other energy crops and the simultaneous benefit of utilization of saline soils.
KW - Anaerobic digestion
KW - Biogas production
KW - Chenopodium quinoa
KW - Co-digestion
KW - Crithmum maritimum
KW - Halophyte composition
KW - Inoculum adaptation
KW - Plant physiology
KW - Sa-linity
KW - Salicornia europaea
KW - Tripolium pannonicum
UR - http://www.scopus.com/inward/record.url?scp=85103501295&partnerID=8YFLogxK
U2 - 10.3390/app11062746
DO - 10.3390/app11062746
M3 - Review article
AN - SCOPUS:85103501295
VL - 11
JO - Applied Sciences (Switzerland)
JF - Applied Sciences (Switzerland)
SN - 2076-3417
IS - 6
M1 - 2746
ER -